Case overview
Jan Broberg was abducted twice by family friend Robert Berchtold between 1974 and 1976 in Pocatello, Idaho. Berchtold manipulated the Broberg family through years of grooming, emotional exploitation, and deliberate isolation that enabled both kidnappings. The case became a documented example of how predators use trust and psychological control to access victims.
The first abduction
On October 17, 1974, Robert Berchtold, a close friend and neighbor of the Broberg family, took 12-year-old Jan Broberg on what her parents believed was a short horseback riding trip. He did not return her that evening. Berchtold had spent years building trust with the family, attending their church, and positioning himself as a father figure to Jan and her siblings.
The Brobergs waited five days before reporting Jan missing. During that time, Berchtold drove Jan across state lines into Mexico. He used a motorhome equipped with a false wall and a recorded audio system that played fabricated messages claiming Jan had been taken by aliens. The recordings told her she had been chosen for a mission that required her to have a child before her 16th birthday. Berchtold sexually assaulted Jan repeatedly during the abduction, framing the abuse as part of the alien narrative.
The FBI located Berchtold in late October 1974 in Mazatlán, Mexico. He returned Jan to her family and was arrested. The Brobergs declined to press charges after Berchtold’s wife threatened to expose affairs Berchtold had conducted with both of Jan’s parents. Berchtold had separately manipulated Bob and Mary Ann Broberg into sexual encounters, creating leverage he used to avoid prosecution.
The delayed legal response
Berchtold was eventually charged with kidnapping in connection with the first abduction. He pleaded guilty in October 1975 and received a sentence that allowed him to serve time in a mental health facility rather than prison. The judge sentenced him to five years but suspended the sentence, requiring Berchtold to complete psychiatric treatment and serve 45 days in jail. He was released after serving less than two weeks.
The Broberg family signed an affidavit stating they believed Berchtold had been brainwashed and needed psychiatric care rather than imprisonment. The affidavit was used to support his reduced sentence. Berchtold’s continued contact with the family during this period reflected the control he had established.
The second abduction
On August 10, 1976, less than a year after his release, Berchtold abducted Jan Broberg again. He enrolled her in a Catholic boarding school in Pasadena, California, under the false name Janis Tobler, claiming to be her father. Jan was 14 years old. Berchtold told school officials that Jan’s mother had died and that he was relocating for work.
Jan remained at the school for approximately three and a half months. Berchtold visited regularly and continued the sexual abuse. School staff did not suspect foul play, as Jan had been conditioned to believe the alien narrative and did not disclose the situation. The FBI issued a federal warrant for Berchtold’s arrest and tracked him using tips and records tied to his movement across state lines.
Jan was located in November 1976 after the FBI received information about her enrollment at the school. She was recovered and returned to Idaho. Berchtold was arrested and charged with federal kidnapping. He was convicted in 1977 and sentenced to five years in federal prison. He served approximately two and a half years before being released on parole.
The civil case and aftermath
In 1976, the Broberg family filed a civil lawsuit against Berchtold seeking damages for the abductions and abuse. The case was settled, though the terms were not publicly disclosed. The family also pursued restraining orders to prevent further contact.
Berchtold moved away from Idaho following his release from federal custody. He continued to have legal issues related to sexual misconduct. In 2005, he was charged with simple assault in Utah after allegations involving another child. Berchtold died by suicide in 2005 before the case went to trial.
The investigation into systemic failures
The kidnapping of Jan Broberg prompted later examination of how predators exploit institutional and familial trust. Law enforcement faced criticism for the delayed response to the first abduction and the lenient sentencing that enabled the second. The Brobergs’ reluctance to press charges initially was later understood as a direct result of Berchtold’s manipulation and coercion.
Investigators documented Berchtold’s grooming tactics, including his calculated efforts to isolate the Broberg family socially, his use of religious and emotional appeals, and his creation of leverage through sexual encounters with both parents. These methods allowed him to operate with minimal scrutiny despite multiple red flags.
The case became part of training materials used by federal investigators and child advocacy organizations to identify and interrupt grooming behavior. The FBI’s eventual success in locating Jan during the second abduction demonstrated the importance of multi-state coordination in kidnapping cases involving interstate travel.
Jan Broberg’s public disclosure
Jan Broberg did not speak publicly about the abductions until decades later. In 2003, she published a book detailing the abuse and manipulation she endured. She later participated in a 2017 documentary that examined the kidnappings and the psychological mechanisms Berchtold used to control her and her family.
Broberg has since become an advocate for survivors of childhood sexual abuse and has worked to educate parents and institutions about the tactics used by predators. Her testimony has been used in legislative efforts to extend statutes of limitations for child sexual abuse cases and to improve training for educators and law enforcement.
The case remains a documented example of how familial trust, societal politeness, and institutional gaps can enable prolonged abuse. Investigators and victim advocates continue to reference the Broberg case in discussions of grooming, coercive control, and the barriers survivors face in obtaining justice.
Where to look next
- Documentary: “Abducted in Plain Sight” (Netflix)
- Book: “Stolen Innocence: The Jan Broberg Story” by Jan Broberg
- Podcast: “Obsessed With: Abducted in Plain Sight”
